Bonzolino or – Bonzo Broadcasted (1925)

Bonzo is rejected by his sweetheart, a pekinese called Chekee, who is enraptured by her favourite film stars. However, she readily accepts Bonzo after he has been to Hollywood, and returned as the famous actor Bon Chaney. (http://explore.bfi.org.uk/4ce2b6be5de33)