Solution:

Slumdog Millionare = Slum + Dog + Million + air

Solution:

Isaac Newton

Explanation:
I + Sack(saac) + Knee(new) + Ton

Solution:

MOB + I(pointing to me) + Le (Bruce Lee) = MOBILE.

Solution:

O + Pi + nion (Pi In Onion)
= Opinion

Solution:

bear

Solution:

Equal rights

Solution:

Open doors.

Solution:

Halloween

Explanation:
He(From he-man) + low(From down array) + E +N(From No)

Solution:

Need for Speed.

Explanation:
Clearly, ds/dt refers to speed. Concluding with whats written already, the movie name is Need for Speed.

Solution:

Happy Birthday To You

Explanation:
Happy + Bird(-d) + sunday(-sun) + to(2) + you(u)