Hi Metin!
I you mean metropolis (large thx cinema), make sure you leave early enough if you want to see a movie in the evening, the place is overcrowded fri-sat-sunday night…
The famous spaghetti restaurant, is it ‘de pasta’? I’ve been there, and it’s good, but maybe best to reserve a place before you go… Also there are different menu’s on the different levels of the building!
If you want cheap but good pizza, go to ‘da giovanni’, near de groenplaats. It’s a real happening to eat there, it’s so busy and the waiters are so stressy, really funny. They also bought a few nearby buildings to expand their restaurant, it looks like an italian mob who’s trying to rule the pizza business in antwerp! 
The begijnenhof is nice, close to the university of antwerp, UFSIA, which has also nice old buildings with cosy inner gardens where you can walk through.
If you want to shop, go to de meir (car free shopping street), but also walk on it in the direction of the groenplaats, and when you reach the the big tower at the end of the meir (boerentoren), go left and there are some small streets with all kinds of tiny shops. There’s a chocolatier who makes really incredible things with chocolate, and also ‘desirée de lille’, the most famous dessert restaurant in antwerp (famous for their lackmans or galetten).
Don’t know if it’s still possible, but you used to be able to get on top of de boerentoren, where you have a good view across antwerp.
For the rest, if you travel by car, prepare for some chaos in the centre because they’re breaking up the biggest street in the centre of antwerp…
What else do we have… mmmm… maybe the railroadstation, stadhuis, academie voor schone kunsten, … Just go here: http://www.visitantwerpen.be/
Hope you have fun on your trip!
flipside