Animation between 1930-1950: 

From 1930 to 1934 was the Iwerks era. UB Iwerks was a  friend and partner of Walt Disney. He was a technical innovator of cartoons and also did over 600 drawings for Disney studio’s including the first drawing of mickey. He produced 3 cartoons: 

1.Willie-Goldwyn-Meyer

2.Flip the frog 

 3.Comi-colour for pat powers celebrity productions. 

However, none of these were as big as the Fleischer or Disney cartoons. Iwerks worked for MGM (metro-Goldwyn-Mayer studios - founded in 1924) in the animation division for a number of years after his time with Disney. However MGM eventually stopped making Iwerks cartoons due to them being unsuccessful and instead hired 2 up and coming animators called Harman and Ising. Iwerks returned to Disney in 1940 and worked on special effects until he retired in 1960.

Meanwhile Harman and Ising were briefly successful from 1934 to 1937. MGM studios hired the 2 from the van beuren studios. they were soon made head of the MGM studio.  
while at MGM studios the 2 produced Bosko(popular looney toons character) and Happy Harmonies which was coppied from Disneys silly symphonies. 

 Both of these productions failed quickly in the theaters. MGM studios the replaced Harman and Ising with a cartoon producer named fred quimby. quimby was also the head of MGM studio and with his power he created and produced the comic book series called the captain and the kids.  

 Although this cartoon also failed.  

In 1939 Quimby hired Harman and Ising again. Ising then created Barney Bear which was the companies 1st animated star. although the companies biggest cartoon was tom and jerry which was created by william hanna and joseph barbera. the 1st ever tom an jerry cartoon aired in 1940. 

After the success and awards Tom and Jerry reeled in the company hired Tex Avery in 1941 who brought the comapany some of its other big cartoon hits such as: 
1.red hot riding hood 
 

2.swing shift Cinderella
3.droopy

Famous animators through history

Disney:
Disney studio was founded in 1923 by the Disney brothers, roy and walt Disney. Disney was responsable for creating a some of the most famous animated characters such as:

•  Mickey mouse
• Oswald the lucky rabbit
• steamboat willie
•  by 1934 disney had gained enough recognition to start making cartoon movies such as:
• snow white and the seven dwarfs which aired in 1937.
• pinocchio aired 1940
• as well as fantasia
• dumbo aired 1941
• Bambi 1942
•  Cinderella 1950
• Alice in wonderland 1951
• Peter pan 1953
• Treasure island 1950
• The sword and the stone 1953

Max and dave fleicher founded fleicer studios in 1921. the studio was second to walt disney productions for many years. althpough an animation studio, the fleicher studios were more knowen for their human chracters.
The studios were also well knowen for their life like animations which were made by the rotoscope that max fleicher inented. The feicher brother (in contract with bray studio) created a number of series:

• Out of the inkwell
•  ko-ko song car-tunes ended 1927 returned 1929 to 1938 1st with sound deal with paramount allowed the to do so
• Come take a trip in my airship
• Darling nelly gray
• Has anybody here seen kelly
• By the light of the silvery moon

The fleicher brtohers were highly though of as animation producers. their productions used the rotograph which created live action backgrounds to the animations.in 1929 felicher studios released aniother series called talkatoons which featured one of their most famous animated chracters bimbo. howeer, bimbo the character was replaced when his girlfriend co star chracter betty boop(1st female chracter in american animation)  became more popular than him in 1932. fleicher studios gained more sucess by using established simgers and jazz musicians in their cartoons. despite this the company began losing its popularity in the 30's.

Warner Bros Cartoons/Leon Schlesinger (Golden Age Of Animation)

Warner bros animation studeios was one of the most sucessful animation studeios ever. warner bros animations came around in the golden age of animation. these studeios were responsible for a wide variety of popluar cartoon and chacarters that are still big today:

• bugs bunny 

• daffy duck 

• porky pig 

• wile e coyote/ the road runner 

The warner bros studios had some of the mst talented animators and directors in american history such as:

• Chuck Jones 
• Friz Freeleng 
• Tex Avery 
• Robert Camplett 

The warner bros animationn studios were in corporation with warner bros studeios until it closed in 1960's. the animation studeios was founded in 1933 as its first name the leon sheslinger studios. it contained chracters which the warner brothers had produced and was sold to the warner brosers in the early 1940's. the leon shesligner studeion had tom palmer as there lead directory who eventually left the company and joined disney studios.