Letter of Introduction is a 1938 American comedy-drama film directed by John M. Stahl.

In 1966, the film entered the public domain in the United States because the claimants did not renew its copyright registration in the 28th year after publication.

[3] An aging actor, John Mannering, is surprised when his estranged daughter, Kay Martin, shows up.

He is persuaded to perform on Broadway for the first time in twelve years in a play with her.

He is anxious about his performance, so turns to alcohol to overcome his self-doubt.