Galecki cast with Timberlake in sci-fi

The Big Bang Theory star Johnny Galecki has reportedly been cast alongside Justin Timberlake in an upcoming film by studio New Regency.

According to The Hollywood Reporter, Galecki will star in Gattaca director Andrew Niccol's science fiction film I'm.Mortal.

Galecki will play the part of Timberlake's best friend, who attempts to help him overcome alcoholism in a world where no one ages.

The actor currently portrays Leonard in the popular CBS comedy The Big Bang Theory.

I'm.Mortal will begin filming later this month, with an expected release date in 2011.