How many movies have Robert De Niro and Al Pacino been in together?
4
2
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
4
3
1
2
4
3
1
2
4
3
1
2
4
3
5
1
2
4
3
5
1
2
4
3
5
1
2
4
3
5
1
2
4
3
5
1
2
4
3
5
1
2
0
4
3
5
1
2
0
4
3
5
1
2
4
3
5
0
1
4
3
5
1
0
4
5
6
4
5
7
6
4
5
7
6
4
5
7
6
4
5
7
6
4
5
7
6
4
5
7
6
5
7
6
5
7
8
6
5
7
8
6
7
8
6
7
8
6
9
7
8
6
9
11
7
10
8
6
9
11
7
10
8
6
9
11
7
10
8
6
9
11
7
10
8
6
9
13
11
7
10
8
12
6
9
13
11
7
10
8
12
6
9
13
11
7
10
8
12
6
9
13
11
7
10
8
12
9
13
11
3.
2 films
2 movies
3 films
3 movies
3.
2 films