jessesmom,
the science centre might freak you out a bit cos they don't clean their exhibits very judiciously, much less to sanitize them. i usually don't really mind abt the whole cleanliness thing, so when i was at the center, i put him down to run about and play/touch the exhibits. for your case, you can still visit and let him touch/press/poke the exhibits. but you've gotta lug along lots of wipes, hahaa! there's also a water feature at the science center, have to bring an extra set of clothes for you and bb if you wanna go there.
for cinema entry, my colleague says that only tods who are 90cm and above need to pay for a tic, so at the moment most of our 14mth old bb should be able to go in FOC. she recommended that for the promo, can go to quieter cinemas like the one at toa payoh. she said that when the show was on, she actually could nurse her kid and play with him, while also getting a chance to watch the show of course.