The festival runs Jan. 26 through Feb. 6, 2011.

LONDON -- The International Film Festival Rotterdam is marking its 40th year in January with a look back and forward, organizers said.

Under the motto "XL," the festival’s anniversary program will include a documentary to mark 40 years of IFFR by Frank Scheffer.

And future festivalgoers will be made welcome via the sidebar, Not Kidding, billed as a playful program for budding film buffs 4 years old and up.

The 40th IFFR runs Jan. 26 through Feb. 6, 2011.