Was rhod Gilbert in what's eating Gilbert grape?

What is Eating Gilbert Grape was filmed in Manor, Texas although they were saying in the film that is was Iowa. This movie starred Johnny Depp.

Arnie is Leonardo DiCaprio and Gilbert was johnny Depp and Becky was juliette Lewis

A town Called Endora (not sure if its real) in Southern USA

whats eating gilber grape?lets try his mum maybe

By 'What's Eating Gilbert Grape?' it means what is annoying him or eating away at him.