Can I Use Jon Heders Image In My Independent Film?

The Lead Character Has A HUGE Crush On Him. I've Looked The Legal Stuff Up And From What I Gather I'm Able To Use Public Photos And Facts As Long As Its In An Artistic And Non-Slanderous Way. The Photos Would Just Be In Her Locker And On Her Walls. What Would Be My Legal Limitations On This? I Have A Low Budget So I Don't Know If I Could Get Direct Consent Or Not.