Not authorized while querying a collections in Movies db

am able to connect to the M121 on atlas cluster but when I fire a query as

use movies

db.movies.find()

I get following error…
Error: error: {
“operationTime” : Timestamp(1561055148, 1),
“ok” : 0,
“errmsg” : “not authorized on movies to execute command { find: “movies”, filter: {}, lsid: { id: UUID(“10d763ff-f6f1-4dac-8411-27fa38ba7136”) }, $clusterTime
: { clusterTime: Timestamp(1561055148, 1), signature: { hash: BinData(0, 670C38FAB22BCC03C1CEB19DF1D1183EE872015C), keyId: 6661714504839069697 } }, $db: “movies” }”,
“code” : 13,
“codeName” : “Unauthorized”,
“$clusterTime” : {
“clusterTime” : Timestamp(1561055148, 1),
“signature” : {
“hash” : BinData(0,“Zww4+rIrzAPBzrGd8dEYPuhyAVw=”),
“keyId” : NumberLong(“6661714504839069697”)
}
}
}

Can anyone please help

@Sridhar_73818

Check what db you are in. Enter ‘db’ to see that displayed; it should be the ‘aggregations’ database. Notice that the supplied connection string automatically puts you into that db. Good luck.

Yeah, the movies collection to use is actually in the aggregations db.