There are thousands (maybe even millions) of celebrity photoshops on the internet.
Most of them are extremely unsavory.
Not this one of Alison Brie (of Community and Mad Men fame) playing Captain America, though – it brings the goods and can be looked at without shame:
In case you’re curious, Brie was briefly linked to the upcoming Captain America: The First Avenger sequel Captain America: The Winter Soldier but it doesn’t look like she’ll have a part in the film. Taking place in the present-day, it reportedly follows Cap’s battle against his former (dead) sidekick Bucky Barnes, who gets resurrected and brainwashed by the Russians.
The film is set for a release sometime in 2014.