Even the experienced actors like Lindsay Lohan and Charlie Sheen flub their lines every now and again, and fortunately for us, the cameras were rolling when they did.
Sheen brought Lohan aboard his TV series Anger Management in April to appear as herself in an episode of the sitcom.
In the episode, Lohan hires Sheen's character as an anger management counselor to help keep her calm on the set of a commercial.
Ironically, Sheen was fueling Lohan's temper (all in good fun) on the set as he and his co-star Michael Boatman failed to execute a few simple lines in a scene.
However, Lohan wasn't perfect herself on the show, as she botched a few lines when filming the faux commercial on her episode.
Watch bloopers from Lohan, Sheen, and even singer Cee-Lo in the video above, and get your copy of Anger Management: Volume Two on Blu-ray, DVD, and Digital Download on October 15.