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