Alec Baldwin has signed on as executive producer of a documentary on the life of former Massachusetts Congressman Barney Frank.

Compared to What: The Improbable Journey of Barney Frank opens next month at New York City's Tribeca Film Festival.

The film is directed and produced by Sheila Canavan and Michael Chandler. In addition to Baldwin, Geralyn Dreyfous and Jamie Wolf are also executive producing, reported.

“A new feature documentary about one of our most well known – and least understood – political figures, and intimate portrait that alternates between deeply personal moments and the inner workings of our political process,” the film's website states. “Frank's journey is our country journey, a classic American story about a dedicated public servant who never loses hope.”

Frank, who has the distinction of being the first openly gay member of Congress and the first to enter a marriage with a member of the same sex, in 2009 was the subject of a biography more than 5 years in the making. Barney Frank: The Story of America's Only Left-Handed, Gay, Jewish Congressman is available at