Love on the set!

Hayden Panettiere - sporting a wig - gets some PDA from her much older boyfriend, Milo Ventimiglia, in between takes of shooting the new season of Heroes, this past weekend in Los Angeles.

Production may be halted next week on the show - and all other SAG projects - if the Screen Actors Guild is still unable to reach an agreement with the big media moguls.

Hopefully that won't happen - again!

Source: PerezHilton