From WENN.com

The Knocked Up star was alerted to the plight of a pup called Fritz, who was in ""serious distress"" when he was found on the street last week (ends06May12).

A blog in his honour has been set up, and Hill posted a message on his Twitter page telling fans, ""If you're on the East Coast and wanna (sic) rescue an amazing dog click here: http://fritzneedsahome.tumblr.com/.""