Błędnie: He was very proud when he saw his name in the credit for the very first time. Today he's a famous cameraman.

Poprawnie: He was very proud when he saw his name in the credits for the very first time. Today he's a famous cameraman.

"Credit" to 'kredyt', 'wiara', 'zaufanie'; "credits" to 'napisy końcowe lub czołowe' (w filmie, programie telewizyjnym).