How many Back to the Future movies are there?
3
3
3
3
3
3
5
3
5
3
5
3
5
3
5
3
5
3
5
3
5
3
5
3
5
3
5
3
5
3
5
3
5
3
5
3
5
5
5
4
5
4
2
5
4
2
4
2
4
2
4
2
4
2
4
2
4
2
4
6
2
0
4
6
2
4
0
6
2
4
6
2
7
0
4
6
2
7
0
4
6
2
7
4
0
6
2
7
4
6
2
7
0
4
6
2
7
0
4
6
2
7
4
1
0
9
6
2
7
1
9
6
2
7
0
3 films
1
9
6
7
0
1
9
6
7
5 films
1
9
3 films
6
7
8
1
9
6
7
8
1
5 films
9
6
7
3D
8
1
3 films
9
3 of each
3 of them
6
7
8
1
3D
9
6
7
3 of each
3 of them
5 films
8
1
10
13
9
6
7
3D
3 films
8
1
10
13
9
3 of each
3 of them
7
3D
8
1
10
13
9
7
5 films
3 of each
3 of them
8
1
ten
10
13
3D
9
3 films
3 Movies
7
3 movies
Three
8
1