Alyson Hannigan shares concerns about letting her kids watch ‘American Pie’

​Hannigan recalled that when her daughters were younger and in elementary school, they went through a phase where they wanted to watch some of her work, like ‘Buffy the Vampire Slayer.’ However, at that time, they were still too young to see many of her projects. Now that they’re older, Hannigan has slowly begun to introduce them to her past roles, but there’s one series she’s not ready for them to see: ‘American Pie.’