Trailer Notes

Will's party Darcy enters with friends
Will hugs Darcy's friend Darcy gives
Will a drink Hands nearly touch Nothing happens
Close up of faces when they each other - spark
Later on, Darcy gets a drink and they accidentally touch
Fades black Siren > 1940s snippet
Scrambling around, calls Will, etc.
Other character lights candle "be quiet, they can hear us" 
Darcy reaches for Will and they touch
Fades black Jazz music > 1920s snippet 
Complete opposite with glam miss-en-scene and ball setting
Musicians Will and Darcy are talking to separate people about where they are
Group of people who think they know Will and Darcy speak to them, push them together
They touch Fades black School bell rings > 1950s
Darcy meets another guy and falls for him
Will realises he is jealous and finds that he is in love with Darcy
He walks over to Darcy, who is talking to other guy, and touches her hand
Fades to black Gym class? > 1980s
longer Will and Darcy are angry with each other
Will sees his mom when she was younger 
He runs up to her and calls out to her, suddenly disappears
Darcy is left in the 80s on her own
Will appears in the present at the party, with no sign of Darcy
Will they find their way back?
Trailer ends
Find out in the next movie how got each other back