Tinseltown (1970)

Wannabe actor Jake Dunham (Harrison Emmonds) finds himself trapped in his own mind by his loneliness. His two imaginary friends 'David' (Craig Pearson) and 'Teresa' (Brad Oliver) are the only people who manage to keep Jake going in life, their friendship frays when Maddie (Juliette Frances Taylor), a fellow actress at the local theatre, attracts Jake's attention.