Dear Children at Shrek 5, 

If you ask who any of the characters are, or speak during this movie i will politely ask you to get out.

The movie is made for those familiar with Shrek extended universe - including the holiday specials, shorts, and video game tie-in exclusive characters. If you don't know the lore, do your research now or wait until the Blu ray drops.

Sincerely,
Someone who’s actually seen Shrek